bullard



S. BULLARD. lStoveppe Damper..

Patented April I6. 41867.

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N.PETERs. PHOTO-LITHQGRAPHER, WASHINGTON, D C.

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IRA BULLARD, 0F GENEVA, NEW YORK, ASSIGNOR TO HIMSEIJF AND i C. H. PARKER, OF'THE SAME PLACE.

Letters Patent No. 63,850, dated April 16, 186i'.

ATTACHMENT POR GONTROLLING DRAUGHT IN STOVE PIPES.

TO ALL WHOM 1T MAY CONOERN:

Be it known that I, IRA S. BULLARD, of Geneva, in the county of Ontario, and State of New York, have invented a new and improved Attachment for Stove Pipes; and do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings forming part of this specification.

The present invention relates to a regulator attachment to stove pipes, for the purpose of the better controlling the draughtof the stove, boiler, or Jrire-box, from which .the smoke, etc., is conducted oif through the` said pipes. This invention consists in securing a sheet-metal box or drum to one sideof a stove pipe, and in providing the outer slotted face of said drum with a gradulated semicircular ring, and an index h and attached to the end ofthe damper-spindle outside of the said drum, as will be hereinafter more fully described. In the accompanying plate of drawings my improved attachment for stove pipes is illustrated* Figure 1 being a side view of a stove pipe having it applied thereto; and

Figure 2,11 central vertical section through the stove pipe, showing the regulator attachment in side elevation.

Similar letters of reference indicate like parts.- u

A, in the drawings, represents the stove pipe, to one side of which, by rivets` or other suitable fastening devices, a box, B, is secured, that, upon its outside face O, is provided with a semicircular ring, D, marked oi int a vseries of graduations, numbered in regular order and succession from one to ve inclusive, commencing at the centre graduation, and extending toward each end ofthe same. llith-the damper to the stove pipe. This damper is hung by its centre spindle Grin and to the stove pipe,`upon a line at the centre of the graduated Vring D. H an index hand or pointer, attached to outer end of centre spindle G. This pointer H is provided with a pointed stud upon its `under side, by which it-is caused to be held, at whatever graduation it may be set, by itsengageme'nt with the notches or. depressions Zw in the face ol' the pipe-box B. J, two openings in lower portion of pipebox B, corresponding to which are openings K in a plate L,. back offbox-plate; this plate L' being hung upon the damper-spindle G, andfheld forward against the inner side of-t-he plate YC by means ofthe spiral spring b, so as to freely turn therein, and also provided with a knob, M, for convenience' in operatingit, so as to thereby more or less open the apertures J2 in the pipe-box B to the passage of air through the same to the interior-ofI the stove pipe, according as maybe found most desirable or necessary to produce thel proper regulation of such air supply forrthe better combustion of the fuel employed in the stove.

I claim as new, and desire to secure by Letters Patent- The construction and arrangement, upon the side of the stove pipe A, of the circular box B, provided upon its slotted face C with a semicircular graduated ring, D, and depressions b, into which `fit the pointed studs of the spring index hand H, secured to the end of the damper-spindle G, sliding slotted plate L, hung upon said spindle and held .in place by means of the spiral springV 6', substantially as herein shown and described for the purpose specified.

IRA S. BULLARD.

Witnesses:

CHARLLS C. PRATT, D. CoLviN, 

